Upon perusing the articles and accompanying comments on the main page today, I'm disheartened to see that there are a startling number of people who don't seem to understand what words actually mean. So here's a quick reference guide, provided free of charge by yours truly.

Tyranny

1. Cruel and oppressive government or rule.

1.1 A nation under cruel and oppressive government.

1.2 Cruel, unreasonable, or arbitrary use of power or control.

1.3 (Especially in ancient Greece) rule by one who has absolute power without legal right.

Fascism

1. An authoritarian and nationalistic right-wing system of government and social organization.

1.1 (In general use) extreme right-wing, authoritarian, or intolerant views or practice.

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2. The term Fascism was first used of the totalitarian right-wing nationalist regime of Mussolini in Italy (1922–43), and the regimes of the Nazis in Germany and Franco in Spain were also fascist. Fascism tends to include a belief in the supremacy of one national or ethnic group, a contempt for democracy, an insistence on obedience to a powerful leader, and a strong demagogic approach.

Freedom of Speech/Freedom of Religion (Guess what - they're related!)

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

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Criticism

1. The expression of disapproval of someone or something based on perceived faults or mistakes.

2. The analysis and judgment of the merits and faults of a literary or artistic work.

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2.1 The scholarly investigation of literary or historical texts to determine their origin or intended form.

Theory

1. A supposition or system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.

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1.1 A set of principles on which the practice of an activity is based.

Example: "music theory"

1.2 An idea used to account for a situation or justify a course of action.

1.3 A collection of propositions to illustrate the principles of a subject.

Scientific Theory

A well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method, and repeatedly confirmed through observation and experimentation. As with most (if not all) forms of scientific knowledge, scientific theories are inductive - that is, they seek to supply strong evidence for but not absolute proof of the truth of the conclusion - and they aim for predictive and explanatory force.

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I hope this clears everything up for everyone.